71 lines
1.6 KiB
JavaScript
71 lines
1.6 KiB
JavaScript
import id from UnitJS.Fun;
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import size from Config;
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import {asAFunction, iter, map, set, square} from Grid.Util;
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import {diagonal, zero} from Geometry.Vector;
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import * as CellSet from Geometry.CellSet;
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return {
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fork: fork,
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setCells: setCells,
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start: start,
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zoneNames: zoneNames
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};
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function start(coloring) {
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var empty = Array.from({length: size});
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return {
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constellation: square(size),
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getColor: asAFunction(coloring),
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missing: CellSet.rectangle(zero(), diagonal(size)),
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zones: {
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colors: getColors(coloring),
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rows: empty.map(function(_, i) {return CellSet.row(i);}),
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columns: empty.map(function(_, i) {return CellSet.column(i);})
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}
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};
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}
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function getColors(grid) {
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var colors = Array.from({length: size});
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iter(grid, function(color, cell) {
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if(colors[color] == undefined) {
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colors[color] = new CellSet.CellSet();
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}
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colors[color].add(cell);
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});
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return colors;
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}
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function fork(state) {
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var zones = {};
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for(var name in state.zones) {
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zones[name] = state.zones[name].map(function(s) {return s.copy();});
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}
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return {
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constellation: map(state.constellation, id),
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getColor: state.getColor,
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missing: state.missing.copy(),
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zones: zones
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};
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}
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function setCells(solvingState, value, cellSet) {
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var forgetList = allZones(solvingState).concat(solvingState.missing);
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cellSet.iter(function(cell) {
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set(solvingState.constellation, cell, value);
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forgetList.forEach(function(solverSet) {
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solverSet.remove(cell);
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});
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});
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}
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function zoneNames(solvingState) {
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return Object.keys(solvingState.zones);
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}
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function allZones(solvingState) {
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return zoneNames(solvingState).flatMap(function(name) {
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return solvingState.zones[name];
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});
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}
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